DOCXksi

DOCXksi is a hypothetical, open document format designed for long-term interoperability in office software ecosystems. It describes a structured, ZIP-based container intended as an extensible successor to the DOCX format used by Microsoft Word, while remaining compatible with existing OOXML tooling to the extent possible. The format emphasizes modular packaging, explicit metadata, and extensibility to support advanced features such as rich accessibility metadata, semantic tagging, and flexible styling.

The design centers on an XML-based content model and a set of optional extensions. A typical DOCXksi package contains files such as content.xml for document body, styles.xml for styling, settings.xml for document-wide preferences, and metadata.xml describing author, language, and version history. A relationships manifest governs links among parts and embedded media. The packaging permits embedding images, fonts, and other resources, along with checksums and digital signatures for integrity.

In terms of features, DOCXksi supports versioned document histories, extensible metadata schemas, and a pluggable rendering model to accommodate different layouts and accessibility requirements. It also defines a compatibility layer intended to ease import/export with legacy DOCX and ODF documents through adapters.

Adoption is currently limited to experimental tooling in open-source projects and research environments. No major productivity suite provides official, full support, though community converters exist to bridge formats.

See also: Office Open XML, OpenDocument Format, XML-based open document formats.